ehcache集群 rmi自动发现方式，3台机器的其中1台缓存不能同步其他2台

 <cacheManagerPeerProviderFactory
        class="net.sf.ehcache.distribution.RMICacheManagerPeerProviderFactory"
        properties="peerDiscovery=automatic, multicastGroupAddress=230.0.0.1,
        multicastGroupPort=50009, timeToLive=1" />

    <cacheManagerPeerListenerFactory
        class="net.sf.ehcache.distribution.RMICacheManagerPeerListenerFactory"
        properties="port=40003" />

    <defaultCache maxElementsInMemory="1000" eternal="false"
        timeToIdleSeconds="30" timeToLiveSeconds="30" overflowToDisk="false"
        maxElementsOnDisk="0" diskPersistent="false"
        diskExpiryThreadIntervalSeconds="120" memoryStoreEvictionPolicy="LRU">
        <cacheEventListenerFactory
            class="net.sf.ehcache.distribution.RMICacheReplicatorFactory"
            properties="replicateAsynchronously=true, replicatePuts=true, replicateUpdates=true,
                            replicateUpdatesViaCopy=false, replicateRemovals=true,asynchronousReplicationIntervalMillis=1000" />
        <bootstrapCacheLoaderFactory
            class="net.sf.ehcache.distribution.RMIBootstrapCacheLoaderFactory" />
    </defaultCache>

A,B,C3台，A，B的缓存更新均能同步到其余2台，C不行

3台机器代码及host一样，是不是机器环境问题？

http://blog.csdn.net/xcw931924821/article/details/52335696